Is 'sd_ble_gatts_hvx()' api thread safe

[eyalasko]

Hi, 

Are softdevice's api calls thread safe (specifically speaking sd_ble_gatts_hvx()) - 

i.e. Will a concurrent call to sd_ble_gatts_hvx() from several threads corrupt the data sent (SDK 14.2)

Or, does the sd uses some type of atomic queueing when calling to sd_xxx functions

Thanks

[Edvin]

Hello,

Yes. The softdevice calls are thread safe. Remember to check the return value when using the softdevice calls. If sd_ble_gatts_hvx() returns NRF_SUCCESS (0) then the packet is queued internally in the softdevice, and you can queue more packets at once, from different places in your project. 

Best regards,

Edvin